Home / 102,343.02-141,243.72-57,028.38

Finding the Fourth Proportional to 102,343.02, 141,243.72 and 57,028.38

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Solution

The fourth proportional to 102,343.02, 141,243.72 and 57,028.38 is: 78,704.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,343.02 : 141,243.72 = 57,028.38 : x
  2. Step 2: Convert to fraction form
    102,343.02/141,243.72 = 57,028.38/x
  3. Step 3: Cross multiply
    102,343.02x = 141,243.72 × 57,028.38
  4. Step 4: Simplify right side
    102,343.02x = 8,054,900,536.77
  5. Step 5: Solve for x
    x = 8,054,900,536.77/102,343.02
  6. Step 6: Final answer
    x = 78,704.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.